US5078051AExpiredUtility

Ammunition data transmission system

84
Assignee: ALLIANT TECHSYSTEMS INCPriority: Feb 14, 1991Filed: Feb 14, 1991Granted: Jan 7, 1992
Est. expiryFeb 14, 2011(expired)· nominal 20-yr term from priority
F42C 17/04
84
PatentIndex Score
47
Cited by
2
References
5
Claims

Abstract

An improved ammunition data transmission system includes alternately applied parallel sources of high frequency of alternating current (AC) voltage and direct current (DC) voltage. The high frequency AC voltage is applied first to provide updated data and to activate the electronic control package for the round in the projectile. the DC voltage then activates the electric primer system for igniting the propellant charge to fire the round. Both the electronics control package and the electric primer system are connected in parallel with the source of AC voltage and, in the preferred embodiment, the parallel connected circuitry contains a capacitor to prevent DC voltage from reaching the electronics control package and an inductor for preventing AC voltage from reaching the electric primer system.

Claims

exact text as granted — not AI-modified
I claim: 
     
       1. A data transmission system for an ammunition round including a propellant charge, the system comprising: a source of direct current (DC) voltage;   a source of alternating current (AC) voltage;   an electronic control package for the round;   an electric primer system for igniting the propellant charge to fire the round; and   means for alternately providing electrical communication between the AC voltage source and the electronic control package and between the source of DC voltage and the electric primer system.   
     
     
       2. An improved data transmission system for an ammunition round including a propellant charge, the system comprising: a source of high frequency alternating current (AC) voltage;   a source of direct current (DC) voltage;   an AC voltage activated electronic control package for the round;   a DC voltage activated electric primer system for igniting the propellant charge to fire the round;   wherein both the electronics control package and the electric primer system are connected in parallel with the source of AC voltage and the source of DC voltage; and   wherein the parallel connected circuitry contains a first circuit means to prevent DC voltage from reaching the electronics control package and a second circuit means for preventing AC voltage from reaching the electric primer system.   
     
     
       3. The apparatus of claim 2 wherein the first circuit means comprises a capacitor. 
     
     
       4. The apparatus of claim 2 wherein the second circuit means comprises in inductor. 
     
     
       5. The apparatus of claim 2 wherein the first circuit means comprises a capacitor and the second circuitry means comprises an inductor.

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